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SEO Report for csdn.net

December 9, 2019 2:36 AM
Desktop screen Desktop screenshot for csdn.net

SEO SCORE

Favicon for csdn.netcsdn.net
62

8 criteria passed
3 criteria to solve

PERFORMANCE OPPORTUNITIES

Make your meta description eloquent and appealing, neither too short nor too long.
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Follow Google PageSpeed Insights to make your page faster.
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OVERVIEW

• Category
Technology & Computing
• Online since
March 11, 1999 (explore Wayback Machine)
• Age
22 years, 4 months, 20 days
• Alexa Rank
#26, csdn.net is in the world's top 100 websites!

FREE FORM BUILDER

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SEO

SSL Certificate
This website is not SSL secured (HTTPS), the certificate issued by DigiCert Inc has expired on November 6, 2020.
Title Tag
CSDN-专业IT技术社区
Length: 25 (recommended: 10 to 70)
Meta Description
CSDN是全球知名中文IT技术交流平台,创建于1999年,包含原创博客、精品问答、职业培训、技术论坛、资源下载等产品服务,提供原创、优质、完整内容的专业IT技术开发社区.
Length: 223 (recommended: 50 to 160)
Google preview
Desktop Version

CSDN-专业IT技术社区

https://csdn.net

CSDN是全球知名中文IT技术交流平台,创建于1999年,包含原创博客、精品问答、职业培训、技术论坛、资源下载等产品服务,提供原创、优质、完整内容的专业IT技术开发社区.

Mobile Version

Favicon for csdn.net https://csdn.net

CSDN-专业IT技术社区

CSDN是全球知名中文IT技术交流平台,创建于1999年,包含原创博客、精品问答、职业培训、技术论坛、资源下载等产品服务,提供原创、优质、完整内容的专业IT技术开发社区.

Encoding
Great, language/character encoding is specified: utf-8
URL Resolve

Great, a redirect is in place to redirect traffic from your non-preferred domain. All versions of your page point to the same URL.

URL Parameters
Great, the domain URLs look clean.
Attribute Value
viewport width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no

WEBSITE SPEED

csdn.net website speed is slow. Page speed is important for visitors and search engines.

Get insights to improve your page loading time.

Page Loading Time

4s

This domain loads at the median speed of 4 seconds.

Speed Percentile

13%

csdn.net is faster than approximately 13 percent of the web. Your website page speed needs to be as fast as you can make it, without compromising the customer experience.

A good goal to achieve is a loading time of 2 seconds on desktop and mobile devices.

TRAFFIC

This website is ranked #26 by Alexa.

This rank is traffic based. The lower the rank is, the better the domain is ranked.

Alexa data for csdn.net

Daily visitors by country

  • csdn.net daily visitors distribution - Total: 6 countries
  • Flag for United States of AmericaUnited States of America (3.8%)
  • Flag for JapanJapan (3.5%)
  • Flag for ChinaChina (88.9%)
  • Flaf icon for other countryOthers (4.4%)

Traffic country ranks

Country Rank
Flag for TaiwanTaiwan #101
Flag for United States of AmericaUnited States of America #155
Flag for Hong KongHong Kong #45
Flag for Korea (Republic of)Korea (Republic of) #70
Flag for JapanJapan #71

LAYOUT

Doctype HTML5 Arrow Responsive website, mobile-friendly. Arrow

Mobile Rendering

This website seems to be optimized for Mobile Visitors.

Phone
How csdn.net looks like on a mobile device such as an iPhone.

Tablet
How csdn.net looks like on a tablet such as an iPad.

Main colors used

These are the main HTML color codes used by this website. Arrow
  • 40% #ffffff
  • 33% #f0f0f0
  • 2% #101030
  • 2% #605060
  • 1% #f0f0ff
  • 1% #100020
  • 1% #001030
  • 1% #f0ffff
  • 1% #4030d0
  • 1% #102040
  • 1% #fff0f0
  • 1% #300050

Text/code ratio

csdn.net's text/code ratio is 5.76%. It's a bit low. Consider raising it by adding more text content of value for your visitors, or keeping your code clean.
Text / Code Ratio 5.76%

A good text to HTML ratio is anywhere from 25 to 70%.

This percentage refers to the visible text ratio, as opposed to HTML elements, image tags and other non-visible information.

Main HTML tags

Headings Arrow up

Great, we found headings on this page.

  • <H1> 0
  • <H2> 41
  • <H3> 71
  • <H4> 0
  • <H5> 0
  • <H6> 0

However, you have not defined a top level heading, or <H1>. It is used to define the most important heading.

We recommend using one top level heading to set up a semantic relationship between that heading and the remainder of the content on a page. It clearly describes to the readers and the search engines what it is about.

<H2>

For a better readability, only the first 20 <H2> tags are shown below.

2nd level heading
荐 github 标星 1.6w+,我发现了一个宝藏项目,作为编程新手有福了!
从入门到精通,java学习路线导航 (2)
荐 面试还搞不懂redis,快看看这40道面试题(含答案和思维导图)
荐 加快推动区块链技术和产业创新发展,2019可信区块链峰会在京召开
荐 《吐血整理》系列-顶级程序员工具集
<H3>

For a better readability, only the first 20 <H3> tags are shown below.

3rd level heading
选择理由,精准屏蔽 (41)
今日推荐
公开课 | 利用容器技术打造aı公司技术中台
公开课 | 胃肠癌aı病理辅助诊断系统的方法与落地
解读云数据库核心能力及在aı领域的最佳实践
Alt attributes Arrow up

We found 113 images on this website.
62 ALT attributes are missing on your image tags. The issue affects 62 actual different images that could be loaded more than once in your page.

For a better readability, only the first 50 images missing a description are shown below.

Image Image URL Occurrences
Image with missing alt attribute found on csdn.net //csdnimg.cn/cdn/content-toolbar/csdn-logo_.png?v=20190924.1 1
Image with missing alt attribute found on csdn.net https://csdnimg.cn/public/common/toolbar/images/eduwxfix.png 1
Image with missing alt attribute found on csdn.net https://csdnimg.cn/public/common/toolbar/images/csdn-gitchat.png 1
Image with missing alt attribute found on csdn.net https://csdnimg.cn/public/common/toolbar/images/csdnqr@2x.png 1
Image with missing alt attribute found on csdn.net //csdnimg.cn/cdn/content-toolbar/csdn-sou.png?v=20190924.1 1

Alternative text allows you to add a description to an image.

Google rely on alternative text attributes to determine relevance to a search query. Alternative text also makes an image more likely to appear in a Google image search.

It looks like you're missing alternative text for 62 images on csdn.net. Check your website to make sure it's specified for each image on the page.

SOCIAL

This is an overview of your homepage shares on social networks.

You're doing quiet good on social media!

Social shares are a key signal, among many others, that search engines use to evaluate the rankings of a website. Asking people to share your pages, adding visible social share buttons and make great quality content are 3 of the most powerful ways to grow your social presence.

  • Facebook iconFacebook
  • Total Engagement 105
  • Likes 18
  • Shares 66
  • Comments 21
  • Pinterest iconPinterest 0
  • Linkedin iconLinkedin 0
  • Stumbleupon iconStumbleupon 0

DOMAIN

Domain Registrar ALIBABA CLOUD COMPUTING (BEIJING) CO., LTD.
Registration Date 03/11/1999 22 years, 4 months, 20 days ago
Last Modified 03/12/2019 2 years, 4 months, 18 days ago
Expiration Date 03/11/2021 Expired
Nameservers Arrow up
Host IP Address Country
vip3.alidns.com 170.33.24.73 Flag for SingaporeSingapore
vip4.alidns.com 170.33.24.74 Flag for SingaporeSingapore

SERVER

Server map
  • Service Provider (ISP)
  • Hangzhou Alibaba Advertising Co
  • IP Address
  • 47.95.164.112
  • Country
  • Flag for ChinaChina
  • Region
  • Zhejiang , Hangzhou
  • Latitude and Longitude
  • 30.294 : 120.1619

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